CIP Cleaning System for Electrolyte Container

The CIP cleaning system from Kehui provides automated, disassembly-free cleaning for pipes, tanks, fillers, and process fittings handling aggressive chemicals such as LiPF₆, electrolytes, and lithium salts. Unlike manual methods, this CIP cleaning system uses turbulent flow, spray balls, and recirculated chemistry to remove crystallized residues and moisture-sensitive contaminants from six types of containers—including LiPF₆ drums, electrolyte barrels, and lithium salt totes. Kehui designs separate cleaning protocols for different equipment zones, with solvent-based pre-rinse options (DMC or EMC) to hydrolyze LiPF₆ residues safely. Built-in cavitation prevention, return liquid filtration, and circulation heating ensure consistent results while minimizing HF corrosion risk and operator exposure.

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Advantages

Product highlights of the CIP cleaning system for electrolyte containers:

Specialized for lithium salt residues – removes crystallized LiPF₆ without water-induced HF generation
Moisture-controlled environment – optional nitrogen purge and dew point monitoring for humidity-sensitive applications
Cuts cleaning time by 60–70% compared to manual disassembly and scrubbing
Closed-loop solvent recovery – recirculates carbonate-based cleaning fluids, reducing consumable costs
Corrosion-resistant wetted parts – PTFE-lined pipes and 316L tanks resist HF attack
One operator, multiple units – centralized HMI control with recipe storage for different container types

Core Technology

Core technologies of CIP cleaning system for electrolyte container:

The system integrates platinum resistance sensors (Pt100) for temperature monitoring to actuate steam valves, pressure transmitters for liquid level control, and conductivity meters to regulate alkali and acid diaphragm valves. For LiPF₆ drum cleaning, an optional solvent pre-rinse stage uses recirculated DMC or EMC to dissolve lithium salt residues before water-based alkaline wash. The standard sequence runs: solvent pre-rinse (optional) → water fill and preheat → alkaline circulation → hot water rinse → acid circulation → final hot water rinse → heated nitrogen blow-dry. All parameters are recipe-controlled for different soil types and container geometries.

Plant Components

Production line configuration for CIP cleaning system for electrolyte container:

Acid tank – 316L stainless steel with temperature jacket and level sensor
Alkali tank – insulated construction with recirculation port
Solvent recovery tank – optional, PTFE-lined for DMC/EMC storage and reuse
Hot water tank – steam-heated with automatic temperature cutoff
Pure water tank – connects to facility purified water loop for final rinse
Concentrated acid/alkali day tanks – with dosing pumps for automatic replenishment
Plate heat exchanger – provides rapid heating of cleaning solutions
Pneumatic valve manifold – PTFE diaphragms for aggressive chemical compatibility
Instrumentation set – pressure transmitter, conductivity meter, Pt100 sensors, optional dew point meter
PLC control cabinet – touchscreen HMI with recipe storage for LiPF₆ drum, electrolyte barrel, and lithium salt tote programs
Nitrogen drying module – heated N₂ blow-off with dew point ≤ -40°C for moisture-sensitive applications

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